Is it normal for a pregnant woman’s stool to turn black after taking iron supplements?

Jan 19, 2022 Source: Cainiu Health
Disease description:

After becoming pregnant, I developed iron deficiency. Following iron supplementation, my stool turned black. Is it normal for pregnant women to have black stools after taking iron supplements?

Doctor's answer (2)
Dr. Wang Wei
Black stools after taking iron supplements are a normal phenomenon and nothing to worry about. Iron supplements may also cause side effects such as nausea, vomiting, and loss of appetite. Therefore, it is recommended to take iron supplements after meals, as this helps reduce gastrointestinal irritation. In addition to oral iron supplementation, attention should also be paid to daily diet—opt for nutrient-rich foods.